From mboxrd@z Thu Jan 1 00:00:00 1970 From: maxime.ripard@bootlin.com (Maxime Ripard) Date: Wed, 28 Feb 2018 15:40:13 +0100 Subject: [PATCH 0/3] add CPUs OPPs to sun8i a83t In-Reply-To: References: Message-ID: <20180228144013.ayd65zbezdya7cbo@flea> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Wed, Feb 28, 2018 at 02:11:19PM +0100, Quentin Schulz wrote: > Hi all, > > The Allwinner A83T is an octacore A7 divided in two clusters of 4 A7, > each cluster having its own regulator and clock. > > Let's add the OPPs for each cluster so that we can use cpufreq on this SoC. > > The operating points were found in Allwinner BSP and fex files and have > been tested on a TBS A711 with cpuburn and cpufreq-ljt-stress-test. > > Note that there are a few OPPs that are missing: > > 1608000000Hz with 920000mV > 1800000000Hz with 1000000mV > 2016000000Hz with 1080000mV > > These OPPs are pretty unstable but it might be due to the SoC quickly > overheating (till the board completely shuts down). > It seems[1] impossible to reach those frequencies with none or passive > cooling, so better leave them out by default. > > It's still possible to add those OPPs on a per-board basis though. > > [1] http://linux-sunxi.org/User:Tkaiser#First_steps_with_Banana_Pi_M3 Applied all three. The patch 3/3 wasn't ordered properly, so I fixed it, and I removed the newline pointed out by Thomas. Thanks! Maxime -- Maxime Ripard, Bootlin (formerly Free Electrons) Embedded Linux and Kernel engineering https://bootlin.com -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 833 bytes Desc: not available URL: